4K Monitor is an online index for discovering high-resolution movies and television series, with a focus on 2160p 4K releases. It tracks newly added Blu-ray, UHD Blu-ray, Web-DL, WEBRip, and other video resources, including versions featuring HDR, Dolby Vision, HDR10+, and advanced audio formats such as Atmos. Visitors can browse a broad catalog, search titles, and filter listings by content type, genre, release quality, and recency.

Each entry presents details such as format, file size, upload time, and available seed and peer counts, helping users assess releases. The site also highlights recently added and popular items, and provides a calendar and activity-based sorting options. Magnet links are offered for downloading indexed resources.

Some listings are marked as premium and require credits to unlock; the site describes credit-based access and membership options, with account features for checking resource status, synchronizing unlocked items, and viewing VIP benefits. Its catalog includes films and series episodes, from recent releases to older titles, in a range of encodings and quality levels